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Multiple choice chemistry metals reaction of metals reactions of metals chemical properties of metals

$Zn + H _{2}O$ (steam) $\longrightarrow  A + B$


In the equation, A and B are :

  1. $Zn$ and $H _2$
  2. $ZnH _{2}$ and $O _{2}$
  3. $ZnO _{2}$ and $H _{2}$
  4. $ZnO$ and $H _{2}$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Zinc only when heated replaces hydrogen from steam thus forming oxides.

$Zn(s) +H _{2}O(g) \xrightarrow[\text{Above}\; 400^oC]{\Delta} ZnO(s)+H _2(g)$ .

Thus, the compounds A and B are $ZnO$ and $H _2$.